Side wind protection for railway systems



March 21',` 1933. `F, KRUCKENBERG ET AL 1,902,783

lSIDE WIND PROTECTION F011 RAILWAY SYSTEMS Filed sept. 4, 1930 2sheets-sheet 1 fag. 2

March 21, 1933.y F, KRUCKENBERG ET AL 1.902,783

SIDE WIND PROTECTION. FOR RAILWAY SYSTEMS Filed sept. 4, 195ozsneet's-sheet 2 Patented Mar. 21, 1933 UNITED STATES 'PATENT OFFICE: r

FBaNzxnUcxENBERG AND conm s'rEnErELn', or* HANOVER., GERMANY BIDEW1NDPROTEMION FOR RAILWAY SYSTEMS- Application led September 4, 1990, SerialNo. 479,782, and in Germany ctobcr 25, 1929.'

The present invention relates to side wind protection for railwaysystems and particularly to a method and apparatus for protecting therailway vehicle of the high speed type,

from side wind pressures. I

The principal object of the invention is the reduction of side windpressures in high speed railway vehicles with the consequent reductionin resultant relative air speed of the vehicle.

A description of the invention is set forth below, in which reference ismade to the accompanying drawings, wherein' Figs. 1 and 2 showtransverse sectional and side elevational views respectively, of avehicle having 'a theoretically ideal stream-line shape.

Fi 3 is a transverse sectional view, showing the road bed and protectingwalls accord- -ing to the invention, and Y Fig. 4 is a similar view,showing a modified form of road bed'and protecting'walls with a vehicleshown inv its normal relation to the road bed.

It is to be expected that with a carefull laid track with high speeddriven cars whic are sufficiently low 1n air resistance and weight farhigher s eeds could be employed than normally reacii vehicles.v Alreadyin 1903 an electric driven car on the Marienfelde-Zossen railway reacheda maximum speed of 214 km. per hour. The relative air speed in the Alineof travel is here about 60 metres per sec. If there is a storm wind ofsay metres per sec. perpendicular to the line the relative air speed inthe line of travel and the wind combine' to form a resultant of hi herspeed than that of the relative air 'spee in the line of D travel, andthe resultant isv not in the line of travel but is at about 20 thereto.A lateral pressure is produced which increases with the height of thevehicle and the more closely its cross section approaches a rectanglewith fiat 4 sides. Accordingly, the most suitable form of the vehiclewould be a beetle shape. A

vehicle of this form is shown in Figures 1 and 2 of the accompanyingdrawin Such a vehicle could, however, only a ow limited head room forthe passengers which in 1min,-

ed hitherto by railway terrupted, long journeys would be highlydisadvantageous.

The object of the invention isto provide the same or similarly eicientwind passage while raising the clear space in the vehicle to s tandingheight, a vehicle 2 of this form being shown in vFigure 4. For thispurpose protecting walls or fences 3 are providedl arallel to the tracks4 as close as possible to t e vehicles 2, in normal railings in theboundary ofthe loading gauge, and of such height that their upper edgesare level with the lower edges of the windows 5 of the cars. The lateralwinds are directed by these walls 3 as shown in'Fi ure 3. Figure 4 showsthat with such lon 55 tudinal walls the vehicle cross section canextended to a rectangular form at the bottom, without the vehicle beingmore undesirably a'ected by side winds than in Figure y1. The walls orfences 3 must not reach the ground, 7 but be provided with openings 6 topermit air to pass with such speed as will prevent accumulation of snow.Figure 4 also shows that the walls or fences 3 can be erected oncontinuous foundations- 7 which also serve to carry raised elasticsleepers 8;

We claim: l l

1. In a railway the combination of a track imperforate wind protectionwalls parallel with said track in the outer boundaries of the loadinggauge, and al car having portion projecting above said walls saidportion being rounded oi, the upper ed es of said walls beingsubstantially level wit the lower edges of the car windows.'-

2. In a railway the combination of a track, imperforate, vertical windprotection walls extending parallel with said track and located intheouter boundaries of the loadin gau e and having their lower edges atsuc a height from the ground as to pass suilicient side wind to prevent.the accumulation of snow behind said walls, and a car hav' tliiat partprojecting above said walls rounde o 3. AIn a railway the combination ofa track, wind protection walls parallel with` said track located in the'outer boundaries of the loading gauge and having their lower edges 109at such a height from the ground as to pass suflicient side wind topreventvvthe accumulation .of snow behind said walls, and a car saidhaving that part projecting above .d

ser

walls rounded o'the upper edges of Walls being substantially level withthe lower edges of the car windows.

4. ln a railway the combination of continuous foundations and windprotection Walls erected on said foundations.

5. In a railway the combination of continuous Jioundations, windprotection walls y erected on said foundations and raised elasticsleepers mounted on said foundations.

6. In a railway the combination-of a track, a car, windows in said car,and an imper orate wind protection wall on one side of and parallel tosaid track extending up to the lowest edges of said windows.

7. n e.' railway the combination of e track,

a car heving a. rounded top, and an imperforate wind protection wall onone side oi and arallel with said track extendin substantielly up to thelowest part o rounded top. V

in testimony whereof9 we aiix our signe tures.

. FRANZ KR'UCKENBERG.

@T STEDEFELD.

seid

